New take on an old hack. Sergei Mikhailovich Prokudin-Gorskii, in 1920, did the same thing with glass plates and filters. Of course, glass plate emulsions were *slow*, and you ended up with some fascinating effects. http://www.loc.gov/exhibits/empire/ has his work.

I used a digital camera and Photoshop to emulate the process. I didn't have a set of RGB filters, so I took three normal color photos sequentially, and extract one color from each, and then stacked them. I wasn't interested in reproducing color (since the digicam already did that) but in reproducing the fringe effects. See http://walden.mo.net/~eriko/photo/photo3.htm for what I got. It's something I've filed in the "play with more later" file.